What are the advantages and limitations of using digital modes (e.g., packet, Winlink) for formal messaging on emergency nets?

• A. Advantages: reliable data transfer, error correction, archiving; Limitations: requires compatible equipment, skill, regulatory constraints.
• B. Only disadvantages.
• C. Advantages: reliable data transfer, error correction, archiving; Limitations: requires compatible equipment, skill, potential regulatory constraints.
• D. They are faster than voice in all cases.

Answer: (C)